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Super Precision Angular Contact Ball Bearings 71908 CB/P4A

Super Precision Angular Contact Ball Bearings 71908 CB/P4A

The 71908 CB/P4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from high-quality chrome steel. It features a 15° contact angle and is designed for angular contact loads, handling up to 1215 lbf dynamically.

Its open design and phenolic cage ensure smooth operation at speeds up to 45,000 RPM, making it suitable for high-speed applications. The bearing is preloaded and available in matched arrangements for enhanced performance.

With a temperature range of -30°C to 110°C, this bearing is versatile for various environments. It meets the P4 tolerance class (ABEC-7) for exceptional precision.

Ideal for use in machine tools, spindles, or other high-precision equipment where accuracy and speed are crucial. Weighing just 0.12kg, it’s lightweight yet durable for its size. Interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number 71908 CB/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 28
  • Contact Angle 15°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement Available
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 1215 lbf
  • Static Radial Load 934 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 45000 rpm
  • Weight 0.12 kg
  • Price（$） 288.171
Super Precision Angular Contact Ball Bearings 71908 CB/P4A dimension drawing
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Features

Why Choose 71908 CB/P4A Bearing for Precision Tasks?

71908 CB/P4A Bearing features a 15° contact angle, ideal for handling combined radial and axial loads with high precision.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.

The phenolic cage maintains ball alignment, reducing friction and enhancing performance.
With a maximum speed of 45,000 rpm, it excels in high-speed operations while maintaining accuracy.

71908 CB/P4A Bearing’s P4 tolerance class guarantees tight dimensional control for precision tasks.
Its open design allows for easy lubrication, ensuring smooth operation over extended periods.

Application

Practical Applications of 71908 CB/P4A Bearing
71908 CB/P4A Bearing is widely used in high-speed machine tools, where its 15° contact angle ensures precise radial and axial load handling. The phenolic cage reduces friction, making it ideal for continuous operation.

In robotics, 71908 CB/P4A Bearing supports articulated arms, providing smooth movement and durability. Its ABEC-7 tolerance class guarantees the accuracy needed for repetitive tasks.

For medical imaging devices, 71908 CB/P4A Bearing’s chrome steel construction offers reliability in high-precision environments. The open design allows for easy lubrication, extending service life.

Automotive applications like electric motor shafts benefit from 71908 CB/P4A Bearing’s high-speed capabilities. Its matched arrangement option ensures consistent performance in demanding conditions.

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